Easy math puzzles
Poll
 | 20 votes (46.51%) | ||
| | 14 votes (32.55%) | ||
| | 6 votes (13.95%) | ||
| | 2 votes (4.65%) | ||
| | 12 votes (27.9%) | ||
| | 3 votes (6.97%) | ||
| | 6 votes (13.95%) | ||
| | 5 votes (11.62%) | ||
| | 12 votes (27.9%) | ||
| | 9 votes (20.93%) |
43 members have voted
March 30th, 2020 at 8:33:34 PM
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I get 20
Have you tried 22 tonight? I said 22.
March 30th, 2020 at 9:02:52 PM
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Quote: WizardHere is the next one.
edit
an irrational number rounded to 403.16227766
For anyone who wants to win a beer or sugar free rockstar from this question, what shoe is featured in the picture?
March 30th, 2020 at 9:37:56 PM
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5 +5 x 2 = 15
March 30th, 2020 at 9:52:39 PM
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Quote: ssho885 +5 x 2 = 15
Hint:
there is a place they try to trick you
Show your work:
Let shoe = s, man = m, lifting strap = l
ss + ss + ss = 30, ss = 10, s = 3.16227766...
m + m + ss = 20, m =5
ll + ll + m = 13, ll = 4, l = 2
now look very closely at the picture, preferably on something other than your phone
s + mllss x l
3.16227766 + (5 x 4 x 10) x 2 = 403.16227766
ss + ss + ss = 30, ss = 10, s = 3.16227766...
m + m + ss = 20, m =5
ll + ll + m = 13, ll = 4, l = 2
now look very closely at the picture, preferably on something other than your phone
s + mllss x l
3.16227766 + (5 x 4 x 10) x 2 = 403.16227766
March 30th, 2020 at 10:13:11 PM
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Ah, nevermind. Just now noticed the man is different.
March 30th, 2020 at 10:19:52 PM
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Quote: EdCollinsAh, nevermind. Just now noticed the man is different.
Oh yeah. Heh. TomG is right about cell phones.
Have you tried 22 tonight? I said 22.
March 30th, 2020 at 11:38:05 PM
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Quote: TomGHint:
there is a place they try to trick you
Show your work:Let shoe = s, man = m, lifting strap = l
ss + ss + ss = 30, ss = 10, s = 3.16227766...
m + m + ss = 20, m =5
ll + ll + m = 13, ll = 4, l = 2
now look very closely at the picture, preferably on something other than your phone
s + mllss x l
3.16227766 + (5 x 4 x 10) x 2 = 403.16227766
yeah, LOL
March 31st, 2020 at 2:23:52 AM
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Quote: TomGHint:
there is a place they try to trick you
Show your work:Let shoe = s, man = m, lifting strap = l
ss + ss + ss = 30, ss = 10, s = 3.16227766...
m + m + ss = 20, m =5
ll + ll + m = 13, ll = 4, l = 2
now look very closely at the picture, preferably on something other than your phone
s + mllss x l
3.16227766 + (5 x 4 x 10) x 2 = 403.16227766
I have a different interpretation.
I interpret the two shoes to mean s + s. We do agree that two ties are 2t, so why would two shoes not be 2s?
Using my logic, the answer is 43.
“Extraordinary claims require extraordinary evidence.” -- Carl Sagan
March 31st, 2020 at 7:51:00 AM
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This one will be truly easy for those on this forum, but it’s an old classic and I used to use it as an interview question (updated for the current crisis):
With 10% of the population having COVID-19, the world is in extreme crisis. Thankfully, a new Pharma company has just created an instant COVID-19 test that is 90% accurate. World leaders have mandated that everyone take the test in the hopes this will enable the virus to finally be contained. You dutifully show up at Walmart (wearing your N95 mask and staying six feet away from everyone else) to get tested in the pharmacy. Bad news: the test is positive for COVID-19.
What is the probability you actually have COVID-19?
With 10% of the population having COVID-19, the world is in extreme crisis. Thankfully, a new Pharma company has just created an instant COVID-19 test that is 90% accurate. World leaders have mandated that everyone take the test in the hopes this will enable the virus to finally be contained. You dutifully show up at Walmart (wearing your N95 mask and staying six feet away from everyone else) to get tested in the pharmacy. Bad news: the test is positive for COVID-19.
What is the probability you actually have COVID-19?
The race is not always to the swift, nor the battle to the strong; but that is the way to bet.
March 31st, 2020 at 7:55:56 AM
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Quote: WizardQuote: TomGHint:
there is a place they try to trick you
Show your work:Let shoe = s, man = m, lifting strap = l
ss + ss + ss = 30, ss = 10, s = 3.16227766...
m + m + ss = 20, m =5
ll + ll + m = 13, ll = 4, l = 2
now look very closely at the picture, preferably on something other than your phone
s + mllss x l
3.16227766 + (5 x 4 x 10) x 2 = 403.16227766
I have a different interpretation.
I interpret the two shoes to mean s + s. We do agree that two ties are 2t, so why would two shoes not be 2s?
Using my logic, the answer is 43.
What makes you think Tom is saying two ties is 2t and not t^2? It’s the same answer since t=2
The race is not always to the swift, nor the battle to the strong; but that is the way to bet.
